You didn’t really fix the problem, though. You just put the unbalanced front tires in the back, where the vibration is less noticeable. If you ever rotate the tires again, the problem will return, until you get the wheels balanced.
I won’t be putting the now-rear tires in the front ever again. They’re no longer great, and while they’re not screaming “get new tires!” yet, they will be in a few months. The now-front tires are fine tho, tread-wise.
Ah. Maybe I can ask my mom for 2 new tires for my Bday. Heh.